Question Ice Lake vs Ice Lake W CPU's on LGA 4289/ c621a motherboard ?

[CalvinOgawaWestminster]

HI. I am trying to find information to design a Xeon system using PCIE 4.0 bussing. Having a lot trouble finding whether ICE LAKE Xeon like Silver 4314 processor can be used with the newer C621A Motherboards-- which are marketed as using Xeon W-3300 CPU's. I think this can be done, Can someone who are familiar with this area of technologies answer my concerns? I want to make sure we buy the right stuff. Thanks...Cheers. Calvin Ogawa

 

[Darkbreeze]

So, I'm not seeing any of the board vendors including Intel showing support for ANY CPUs other than 3rd Gen Xeon scalable processors, Ice lake (ONLY, from what I can see), which are seemingly also ALL only PCIe Gen 3 capable. This is an area I'm not as familiar with as the consumer chipsets and CPUs, but from what I can see it does not look like this platform supports PCIe Gen 4 at all. I could definitely be wrong, especially if there is recent support for newer Xeon models, but I do not believe that is the case based on Intel's own datasheet info which shows only 3rd Gen Xeon parts being compatible with the C621a chipset boards.

https://www.intel.com/content/www/us/en/products/sku/208266/intel-c621a-chipset/compatible.html

 

[Darkbreeze]

Correction. Seems those CPUs DO support PCIe Gen 4. But it seems as though some of the boards do not. I'll find clarification on that.

Edit: So, don't know what I was seeing earlier, but it looks like all of the supported models, boards and CPUs, are all PCIe Gen 4 so should be no problem there and these are the CPU models that are supported on that platform.

 

[Darkbreeze]

Ok, this is what I was seeing. Something is OFF with the Intel data sheet, because IT shows this platform as being only PCIe Gen 3, as seen here:

https://www.intel.com/content/www/us/en/products/sku/208266/intel-c621a-chipset/specifications.html


However, all of the C621a motherboards and all of the CPUs that Intel shows as being compatible with that chipset, ALL show PCIe Gen 4 support, and the link below shows exactly which CPUs are compatible with the C621a boards.

https://www.intel.com/content/www/us/en/products/sku/208266/intel-c621a-chipset/compatible.html

And the Silver 4314 is one of them.

 

[CalvinOgawaWestminster]

Ok, this is what I was seeing. Something is OFF with the Intel data sheet, because IT shows this platform as being only PCIe Gen 3, as seen here:

https://www.intel.com/content/www/us/en/products/sku/208266/intel-c621a-chipset/specifications.html


However, all of the C621a motherboards and all of the CPUs that Intel shows as being compatible with that chipset, ALL show PCIe Gen 4 support, and the link below shows exactly which CPUs are compatible with the C621a boards.

https://www.intel.com/content/www/us/en/products/sku/208266/intel-c621a-chipset/compatible.html
And the Silver 4314 is one of them.

BUT this URL and table puts my life and stress at EASE!!!

Thanks for finding it... My google searches failed me!!

The question was towards the Intel Xeon Silver 4314 CPU. which from what i can see with wikipedia and other postings on the web... being these are ICE LAKE code name dies/architectures and are in the same development family as the Xeon W-3300 series (this is referred either as Ice Lake W or Ice Lake SP) and all are using the C621A chipset...

I was hoping that i can plug the Xeon 4314 into MB like the Supermicro MBD-X12SPL-F-O ATX Server Motherboard and use DDR3 2399Mhz ECC memory modules for now. When prices start to fall for in the Xeon W-3335/3375 -- might consider the upgrade.

What bugs me, is the lack of clarity by Intel and other high end CPU hardware sources on the web about the family of processors. I want the PCIE 4 speeds. I don't want to got back to PCIE 3 hardware & MB's.

The Wikipedia write up--(yes i know this might be questionable and accurate information-- but thing else seems to talk about the development similarities that i can find.):
https://en.wikipedia.org/wiki/Ice_Lake_(microprocessor)#:~:text=Ice Lake features Intel's Gen11,24 or 48 in Gen9.

And Again THANK YOU!!!
Cheers Calvin Ogawa

 

[Darkbreeze]

No problem. Good luck.